Work-support for stapling-machines.



4 H. WEBER. WORK SUPPORT FOR STAPLING MACHINES.

I APPLICATION FILED DEC. 24. 1914. 1,175,029. v Patented Mar. 14,1916.

' 2 SHEETSSHEET I.

H. WEBER. WORK SUPPORT FOR STAPLING MACHINES.

' APPLICATION FILED 050.24, 1914. ;1 ,175 Q29 I Patented Mar. 14, 1916. 2 SHEETSSHEET 2.

MM [(411% I THE CPLUMEIA PLANOGRAPH 50., WASHINGTON, D. c

HENRY WEBER, OF CHICAGO, ILLINOIS, ASSIGNOB TO LATI-IAM MACHINERY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WORK-SUPPORT FOR STAPLING-MACHINES.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed December 24, 1914. Serial No. 878,851.

Z '0 all whom it mdj/ concern Be it known that I, HENRY WEBER, a citizen of the United States, residing at Chicago, in the county of Cook and State of 'Illinois,have invented-certain new and useful Improvements in fork-Supports for stapling-Machines, ofwhich the following the accompanying drawings and more par-.

ticularly set forth in the appended claims.

In the drawings, Figure 1 is a front elevation of the invention as applied to one form of stapling machine; Fig. 2 is a side elevation of the invention applied to the same form of stapling machine; Fig. 3 is a side elevation, with parts broken away, of the movable support; F ig. 4 is a section on line 41 of Fig. 3; Fig. 5 is a side elevation, with parts broken away, of another'form of stapling machine with this invention applied thereto; Fig. 6 is an enlarged section on line 6-6 of Fig. 5; Fig. 7 is a fragmentarytop plan view of thestaple clenching mechanism shown in Fig. 6, and Fig. 8 is a detail section on line 8-8 of Fig. 5. I I

Referringv first to Figs. 1 to 4 inclusive, of the drawings, the numeral 1 designates a frame or standard of a stapling machine of any well known 'or suitable type, such for example, as that shown in my prior Patents 665,946 and 548,681. Carried by the standard -1 is a laterally projecting arm 2 carrying a staple forming and driving head i 3 and spool 4. The stapling head 3 comprises any suitable mechanism for feeding wire from the spool 4 forming it into staples and driving the staples downwardly through the work shown at 6 in Figs. 1 and 2. As stapling devices for this purpose are old in the art and specifically form no part of my present invention further description of these parts ,is unnecessary. Extending through a standard 1, as shown more clearly inFigf3, is a barIor shaft 7. The shaft 7 is rigidly mounted in the standard and is held in position by a collar 8 and pin 9. Journaled on the shaft 7 is a sleeve 10. Attached to the standard 1 by any suitable means, such as legs or screws 11, is a plate 12. 'The plate 12 surrounds the Shaft 7 and has a circular bearing 13 projecting from one side thereof forming an additional bearing for the sleeve 10. The sleeve is held from longitudinal movement on the shaft 7 by means of a head 14. A circular flange 15 s formed on the sleeve 10 and this flange is cut away to provide the shoulders 16, shown in Fig. 1. A pin 17 extends from the plate 12 between the shoulders 16 to limit the rotation of the sleeve 10 about the shaft 7. At the lower portion of the sleeve 10 at one end thereof is a projection 18. Rigidly fixed to this projection is a piece of hardened metal 19 having cam surfaces 20 and a latch-opening 21. A latch 22 is adapted to enter the opening 21 to hold the sleeve 10 from rotating. The latch 22 has a bar '23 extending downwardlv therefrom and carrying a foot piece 24 for operating the latch. A tension spring 254is fastened to the bar 23 and the standard 1 and tends to hold the latch in its upper position. Rigidly at tached to the sleeve 10 is a work supporting bar 26. This bar 26 extends upwardly from the sleeve 10 andv has its upper end 27 in position to cooperate with the stapling head 3 to bend and clench the ends of the staples as they are forced through the work by the stapling mechanism. In the form of device shown in Figs. 3 and 4 the upper end of the arm 26 carries what is called a self stapling member 28. In this member grooves 29 areformed against which the ends of the staples are impinged. The inclination of the grooves is such that the ends of the staples are bent and turned upwardly, due to the force of the blow upon the staple from above. The member 28 may be adjusted to accommodate different thicknesses of work by means of a bolt 30 integral therewith and locknuts 31. lVith a stationary work support or table, such as has been heretofore used. it has been impossible to staple together the bottom flaps of a carton because the boxes could not be placed in position beneath thestapling Lead. Vith the present invention. when it is desired to complete a carton by stapling together the bottom flaps the latch 22 is released, permitting, the arm 26 to swing to the right, in Fig. 1, far enough to allow the boxes to be slid down over the work supporting bar 26. After the carton has been positioned over the bar 26 so that the top of the bar is in contact with the inside of the bottom of the carton the bar 26 is swung back into its up right position, the latch 22 automatically springing into place to hold the bar in this position. The bottom fiaps may now be stapled together and when the work is complete the operator presses down on the foot piece 24 permitting the bar to be again swung to one side so that the box may be removed. The distance that the bar 26 swings forced through the work they first strike' the beveled shoulders 34, shown in Fig. 6, and are bent slightly inwardly. 1They' are then in position to be struckby the head 33 by which the clenching action is completed. The plunger '32 is operated by a lever 35 mounted on a bracket 36 and having one end '37 extending into position beneath a rod 38 within the standard l. The rod 38" is reciprocated by a cam 39 and a spring 40. The end of the lever 35 is bifurcated and the bifurcations 41 are positioned on each side of a lug 42 carried by the plunger 32. The upper and lower surfaces of the lug 42 are arcuate, the center of curvature; being the axis of the shaft 7. This formation permits the lug to slide laterally between the bifurcations on thelever 35 as the bar 26 is swung about the shaft 7. Carried by the lug 42 is a horn 43 which serves to guide the bifurcations of the lever 35 back into. operative relation with the lug 42 when the bar 26 is swung from its inoperative to its operative position.

From the description of the devlce given above it is believed that the operation will be evident. In forming a carton of cardboard or similar material the sides of the carton are first stapled together. In order to form the bottom the end flaps arefolded over upon one another and'are stapled in this folded position. It is in performing this last stapling operation that the present invention is especially valuable. After the sides have been stapled the operator presses down upon the frot pedal 24 thus'releasing thesleeVe lO and the arm 26 which are swung to the right, as shown in broken lines in Fig. 1. The carton is then slid down over the har 26 until the bottom flaps come in contact with'the end of the bar. Th'eend of the bar is then swung back into upright this position by the latch'22. When the stapling operation has beenperformedthe carton may be removed by swinging the bar '26 from under the stapling head in the manner previously described.

I claim:

1. In a stapling machine, an upright standard, a stapling head carried by said standard, a shaft rigidly secured to said standard at right'angles therewith, a Work support pivotally mounted on said shaft and adaptedto swing into and out .of position to cooperate with said stapling head, means for limiting the movement of said work support in one "direction to a position directly beneath the stapling head, means for. locklng the work support in this position, .means for unlocking the Work support, and

means for limiting the movement of said work support in the other direction.

2. In a stapling machine, a standard, a laterally projecting shaftrigidly secured to said "standard, a sleeve mounted on said shaft to rotate thereon,"a work supporting bar secured to said sleeveand projecting upwardly therefrom, a latch adaptedto hold said work supporting bar'ina X' ertiCal pO- sition, and a foot pedal adapted to release said latch and permit saidbar to swing laterally out of said vertical position.

laterally projecting arm'carried' at the upper end of'said standa'rdya stapling head secured to'the end of'said arm, a laterally projecting shaft rigidly securedto :said

standard beneath said'arm, and 1 parallel therewith, and having one end'thereofeX5 tending beneathsaid stapling head,a sleeve carried by said shaft and adapted to rotate thereon, a straight worksupporting bar securedto said sleeve'andfprojecting upwardly therefrom toward said stapling head, and arranged to movefiintoiandi out of the plane of said arm and shaft to bring theend of said barinto and out'of position beneath said stapling head, means forlatohing said bar in position'with its end beneath said stapling'head,'and a foot' p'edal for releasing said latch to permit said bar toswing laterally to bring the end thereof out of position beneath said staplinglhead to permit-work to be operated upon to be slid upon said bar. V 'y 1 4. A stapling means comprisinga support, a horizonta'l sha'ft'rig'idlv secured to said support, a sleeve journaled: on said shaft, an arcuate flange on said? sleeve,- a. latch member carried bv said fiange,a latch on said support codperating wlth said latch" member, means for releasing said latch,'tan upright arm carried by said sleeve, and a suitable clenching device carried by i'said arm at'its'upper end. t

V 5. A stapling machineicomnrising a' sup port, a horizontalshaftl carried-by saidi' sup-' port, a plate provided with a bearing and surrounding said shaft and secured to the support, a sleeve journaled on said shaft and on the bearing on said plate, an arcuate flange on said sleeve, a latch member carried by said flange, a latch on said plate cooperating with said latch member, means for releasing said latch, means for limiting the relative motion between said flange and said plate, an upright arm carried by said sleeve, and a suitable clenching device carried by said arm at its upper end.

6. In a stapling machine, a standard, an arm extending laterally from said standard and arranged to rotate thereon, an upright bar attached to said arm to oscillate therewith, a plunger mounted on said bar, a lever pivoted on said standard, and an operative connection between said lever and said plunger preventing relative movement of the plunger and lever vertically but permitting them to move laterally relative to one another.

7. In a stapling machine, a work supporting bar adapted to swing about a horizontal pivot, a staple clenching device carried by said bar, means for operating said staple clenching device, and a connection between said clenching device and said operating means for holding the two in operative relation when the supporting bar is erating means into operative connection 1 with the lug after an oscillation of said work support.

9. In a stapling device, a work supporting bar mounted for oscillation about a pivot, a plunger slidable longitudinally on said bar, a lug carried by said plunger, means arranged to cooperate with said lug to move said plunger when said bar is in one position, and an arcuate horn carried by said lug to guide said operating means and lug into operative relation with one another When said bar is swung in one direction.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 21st day of December, A. D. 1914.

I HENRY WEBER.

Witnesses:

M. S. CASTLE, R. A. F INK.

copies or this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

